这个LCD的密码锁程序和仿真是我在项目中用到过的，可以实现8位密码动态加密，很有参照意义，文件中还包括proteus仿真，决对可以用。(This LCD password lock program and simulation is what I used in the project, you can achieve 8 bit password dynamic encryption, a good reference, the document also includes proteus s